11131231020213 has 16 divisors (see below), whose sum is σ = 15031396658880. Its totient is φ = 7326073273344.

The previous prime is 11131231020167. The next prime is 11131231020223. The reversal of 11131231020213 is 31202013213111.

It is not a de Polignac number, because 11131231020213 - 2¹⁶ = 11131230954677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11131231020213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131231020223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15937708 + ... + 16621461.

It is an arithmetic number, because the mean of its divisors is an integer number (939462291180).

Almost surely, 2^{11131231020213} is an apocalyptic number.

It is an amenable number.

11131231020213 is a deficient number, since it is larger than the sum of its proper divisors (3900165638667).

11131231020213 is a wasteful number, since it uses less digits than its factorization.

11131231020213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32560628.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 11131231020213 its reverse (31202013213111), we get a palindrome (42333244233324).

The spelling of 11131231020213 in words is "eleven trillion, one hundred thirty-one billion, two hundred thirty-one million, twenty thousand, two hundred thirteen".